Detachable shoe for tires.



v J. 0. PIGKES.

DETAGHABLE SHOE FOR TIRES.

APPLIOATION FILED SEPT. 16, 1913.

Patented Dec. 29, 1914;

2 SHEETS-SHEET 1.

J. C. FICKES.

DETAOHABLE SHOE FOR TIRES.

APPLICATION FILED SEPT. 16, 1913.

Patented Dec. 29, 1914.

2 SHEBTSSHEET 2.

DETACHjABLE SHOE FOR TIRES.

Specification of Letters Patent.

tented Dec. so, 1914.

Application filed September 16, 1913., Serial N 0. 790,043.

To all whom it concern: Be it known that I, JOHN C. FIGKES, citizen of the United States, residing at Steubenville, in the county of Jefferson and State of Ohio, have invented certain new .and useful Improvements in Detachable Shoes for Tires, of which the following is a specification.

This invention-relates to an improvement in puncture proof shoes for pneumatic tires.

The primary object of the present invention is to improve the construction shown 'mati'c tires is provided which includes an elastic member which embraces the tire and 3 which is held in'place thereon by a plurality of metallic members. The cushioning memher is formed with a continuous chamber and supported by one of the metallic members, and disposed within the chamber are plungers actuated by the cushioning member to compress the tire. The present invention is particularly designed to improve the construction of the outer member which constitutes the cushion.

Another object of the present invention is to improve the construction of the metallic member which supports the plungers and which is interposed between the outer cushioning member and the tire.

A further object of the invention is to provide a structure which may be readily positioned on the tire while the same is deflated and which upon the inflation of the. tire will be securely held against displacement.

. In the drawings 1 Figure 1 is a transverse section, the plunger being shown in its normal position. Fig. 2 a transverse section showing the rubber shoe in contact with an obstruction, the plunger being reciprocated to c'ompress the tire. Fig. 3 a disassembled perspective view of a portion of the shoe. Fig. 4 a view showing a slightly modified form of means for securing the plunger supporting plate to the shoe, which is particularly adapted for heavy machines in which the weight of the machine has a tendency to spread the shoe.

- Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawings by the same reference characters.

In the drawings, 10 designates the tire "which may be of any' suitable construction.

The shoe consists primarily of a rubber rim 11 formed with the inner channel 12 which constitutes a continuous chamber when assembled on the tire. The side walls 13 of the member 11 are curved interiorly to embrace the tire and are each provided with a groove 14: and immediately above the groove with an annular rib 15. This rib is formed with a projecting edge portion 16 disposed to be inserted within the groove 1%, whereby the flat under face 17 of the rib will contact with the edge 18 of the cushioning member adjacent the groove 14 and thus provide a continuous inner wall when the cushioning member is assembled in a manner which will be hereinafter fully described.

An annular ring 19 constitutes the plunger supporting plate, said ring at its edges being formed with curved flanges 20, where by the ring may be inserted within the cushioning member 11, the grooves 14 accom niodating the flanges 20. After the ring has beenplaced within the cushioning member, the ribs 15 are forced within the channels 21 formed in the flanges 20, the outer curved edges 22 of the ribs alining with the curved wall 23 of the air chamber 24. The plate 19 is provided with a plurality of openings in which are mounted to reciprocate the plunger-s On the lower terminals of these'plungers, that is, their terminals which extend within the chamber 24, are mounted disks 26 which normally contact with the inner wall of the chamber 12. The terminals of the plunger-s which extend through the member 19 and which'are disposed adjacent the tire 10, are provided With disks 27, the contact faces 28 of which are provided with elastic pads 29. WVith the shoe thus assembled, the same is placed upon the deflated tire 10 and the tire then infiated, expanding and contacting with the shoe to effectually support the shoe against dis lacement.

he operation of the present device is substantially the same as in applicants copending application, the depression of the shoe forcing the plunger inwardly, its inward movement being cushioned by the tire 10. Particular attention is called to the fact that the present device does not form a permanent part of the wheel, that is, it is detachable in the same sense, as any othcn form of chain or leather shoe. It is known that tires have been provided with plungers which bear against separable air cushions and the present invention is not directed broadly to the use of plungers disposed to contact with the ground, whereby they are reciprocated and brought into engagement with a pneumatic tire. In the present construction a detachable shoe is provided which may be easily and economically manufactured and in which the metal por-- tions of the shoe while preventing puncture of the tread portion of the tire, do not contact with the tire and are so supported that the shock occasioned by running over an obstruction will not cut either the shoe or the tire. It Will also be seen that the molding of the cushioning member may be accomplished in a simple and convenient manner, which is one of the essential features to be considered in the cost of production, the arrangement being such that the annular member may be quickly detached and a new tire substituted in a comparatively short space of time. I

In the form shown in Fig. 4, an additional reinforcing means for the annular member '19 is provided. This means consists of the annular plates which are. concaved transverselyftheir convex faces contacting ,with the concaved outer walls 31 of thefcushioning member 11. These plates areaisecured to the flanges 20 of the annular member :19 by means of securing devices which preferably consist of the hol- 10W threaded barrels 32 formed with heads 33 which ,eontact with the plates, screws 39 extendin through the flanges, the heads of said so 'ews being counter-sunk, their thread?! portions being received within the/ barrels By this construction it will, bet, noted/that the annular member 19 is see curely held against displacement, its re moval, however, being readily effected by raising the ribs 15 and Withdrawing the screws 39.

In both forms, the tread portion of theshoe is so mounted as to provide an effectual non-skidding devicefbeing formed with a rounded tread portion 40 which terminates at its edges in ribs 41, there being channels 42 dividing said ribs from the outer-rounded ribs 43. It will be seen that all pressure on the member 11 instead of tending to displace the shoe, will act to lock the same more firmly on the tire, the concaved the engaging portions of the cushioning mem ber riding on the side walls of the casing, whether the thrust be directed at the sides of the shoe or at its tread portion.

The many advantages of a construction of this character will be clearly apparent as it will be noted that the entire construction is such as may be manufactured at a small cost and that it may be conveniently carried on a. motor vehicle in the same manner as the usual studded leather armor which is strapped or otherwise secured to the tire and rim. I 4

Particular attention is called to the fact that there is a continuous circulation of air between the shoe and the tire, thus cooling both the tread and tire and prolonging the life of the same. It will also be seen that the metal rim completely encircles the tire thereby rendering the same puncture proof, the arrangement being such that while the rim protects the tire, it is so supported that, it will not in any way out or injure the tire. It will also be seen that the tread portion of the shoe is so constructed as to prevent skidding, the rib 4:3 acting as a roll or leverto prevent sidewise movement of the wheel.

Having thus described the invention what is claimed as new is:

1. A shoe for tires including an annular member formed of resilient material and disposed to embrace the tread portion of the tire, said annular member being formed on its face adjacent the tire with a channel which-constitutes a continuous air chamber, there being grooves formed in the inner faces of the side walls of the chamber, an annular member formed at its edges with flanges disposed within the grooves, and's plungers -mounted to reciprocate within the chamber and disposed to be brought in con tact with the tire when the cushioning memher is compressed, said plungers being guided in their movement by the second mentioned annular members 2. A detachable shoe for tires comprising an annular member formed of elastic material, said member including side portions disposed to embrace the tire, said side por-' tions being interiorly grooved, ribs carried by said side portions adjacent the grooves formed therein, a ring provided at its edges with curved flanges which are received with- 1n the grooves formed in said sideportiona the ribs being disposed te cimtact with the I flanges when the same are-assembled withinf .said grooves, and-annular meniberssup? ported on the outer-faces of the sidememhers, said 'membcrs,being secured to the flanges of the\ ringc -by sec lrihg devices which pass through 'said side portionsnsane are curved to conform to a pneumatic tire,

the interior faces of the walls being channeled, and an annular metallic member extending transversely of the chamber with its free edges seated in the channels of the walls of the rim, said edges being ofi'-set to provide locking shoulders preventing separating of the walls.

4:. A detachable tire shoe, including an annular member formed of elastic material with its inner face shaped to conform to a pneumatic tire, said inner face being channeled circumferentially to provide a con-.

tinuous medial chamber and resultant side walls, the side walls having their inner faces channeled circumferentially, the channels extending toward the outer faces of the side walls and then curving toward the free edges of the side walls whereby the pressure in a pneumatic tire inclosed in the shoe will force the wall portions defining the channels toward each other, and a metallic plate extending transversely of the main channel of the shoe with its edges extending in the channels of the side walls and directed laterally to seat in the extensions thereof, whereby the pressure of the tire binds the edges of the plate in the channels and the said edges of the plate hold the side walls against spreading.

5. A detachable tire shoe, including an annular member formed of elastic material with its inner face shaped to conform to a pneumatic tire, said inner face being curved circumferentially to provide a continuous central chamber and resultant side walls, the side walls having their inner faces channeled circumferentially, the channels extending toward the outer faces of the side walls and then curving toward the free edges of the side walls, whereby the pressure in a penumatic tire inclosed in the shoe will force the wall portions defining the channels toward each other, a metallic plate extending transversely of the main channel of the shoe with'its edges extending in the channels of the side walls and directed laterally to seat in the extensions thereof, whereby the pressure of the tire binds the edges of the plate in the channels and the said edges of the plate hold the side Walls against spreading, and plungers reciprocally mounted through the plate, with opposed heads adapted to engage the outer wall of the main channel and a pneumatic tire inclosed in the shoe.

6. A detachable tire shoe, including an annular member formed of elastic material with its inner face shaped to conform to a pneumatic tire, said inner face being channeled circumferentially to provide a continuous central, chamber and resultant side walls, the sidewallshaving1 their inner faces channeled circumferent-ia extending toward the free edges of the side walls whereb the" pressure in a pneumatic tire inclosed in the shoe will force the wall the channels portions defining the channels toward each other, and a metallic plate extending transversely of the main channel of the shoe with its edges extending in the channels of the side walls and directed laterally to seat in the extensions thereof, whereby the pressure channels and the said edges of the plate hold the side walls against spreading, and additional means for securing the plate in place.

7. A detachable tire shoe,.including an annular member formed of elastic material with its inner face shaped to conform to a pneumatic-tire, said inner face being curved circumferentially to provide a continuous central chamber and resultant side walls, the

of the tire binds the edges of the plate in the side walls having their inner faces channeled circumferentially, the channels extending toward the outer faces of the side walls and 'then curving toward the-free face of the side walls whereby the'pressure in a pneumatic tire inclosed in the shoe will force the wall portions defining the channels toward each other, and a metallic plate extending transversely of the main channel of the shoe with its edges extending in the channels of the side walls and directed laterally to seat in the extensions thereof, whereby the pressure of the tire binds the edges of the late in the channels and the said edges of t e plate hold the side walls against spreading,'and additional means for securing the plate in place, said means including screws extendin outwardly through the laterally directe edge portions of the plate, annular locking rings bearing against the outer faces of the side walls of the shoe, and internally thread.- ed locking bolts passing through said annular rings and portions of the side walls to engage the screws.

8. A detachable tire shoe including an annular elastic member channeled interiorly to provide a continiious chamber and resultant spaced walls, the free edges of the walls being curved to conform to a neumatic tire, and an element connecting t e spaced side walls comprising means located in the chamber to prevent spreading of the walls.

9. A detachable tire shoe including an annular elastic member channeled interiorly to provide a continuous chamber and resultant spaced walls, the free edges of thewalls being curved to conform to a pneuni tic tire,

and an annular metallic member extending transversely of the chamber with its edges supported in the walls and in turn holding such walls against spreading movement.

10. A detachable tire shoe includin an annular elastic member channeled interiorly to provide a continuous chamber and resultplnngers reci rocally mounted through the ant spaced walls, the interior faces of the metallic mem er. walls being channeled, an annular metallic In testimony whereof I afiix my signature -member extending transversely of the chamin presenceof two witnesses.

her with its free edges seated in the channels JOHN C. FICKES. [1,. 8.] of the walls of the run, said-edges being ofl- Witnesses: set to provide lockin shoulders preventing JAY D. PAIsLnY,

separating of 'the wa ls, and. a plurality of HARRY GRIFFITHi 

